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MapReduce >> mail # user >> What is the difference between Rack-local map tasks and Data-local map tasks?


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What is the difference between Rack-local map tasks and Data-local map tasks?
hi all

When I run "hadoop job -status xxx",Output the following some list.

Rack-local map tasks=124
Data-local map tasks=6

What is the difference between Rack-local map tasks and Data-local map
tasks?
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[EMAIL PROTECTED]|Sam
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Michael Segel 2012-10-07, 14:45
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centerqi hu 2012-10-07, 15:28
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Bertrand Dechoux 2012-10-07, 19:31
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paritosh ranjan 2012-10-07, 19:49
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Harsh J 2012-10-07, 22:46
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Michael Segel 2012-10-08, 00:13
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Bertrand Dechoux 2012-10-08, 05:44
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Bejoy KS 2012-10-07, 18:29
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pengwenwu2008 2012-12-13, 06:22